← View Generic B2702 Guide Severity: High
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B2702: B2702: Immobilizer System Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$200 - $500
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2020 Chevrolet
SILVERADO 1500 PICKUP
⚠️

Important for 2020 Chevrolet SILVERADO 1500 PICKUP Owners

Before starting repairs, verify which engine your 2020 Chevrolet SILVERADO 1500 PICKUP has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does B2702 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The immobilizer system has detected a malfunction, preventing the vehicle from starting. This code is typically set when the immobilizer system is not functioning correctly, preventing the vehicle from starting.
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Symptoms

  • • Vehicle will not start
  • • immobilizer light on dashboard
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Common Causes

  • • Faulty immobilizer module
  • • faulty key fob
  • • low battery in key fob
  • • incorrect key fob programming
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How to Fix B2702 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check key fob battery level and replace if necessary. 2. Check key fob programming and reprogram if necessary. 3. Replace immobilizer module if faulty.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

immobilizer module Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B2702

B2700 Sequential Code

B2700: Seat Position Sensor Malfunction

Medium
B2701 Sequential Code

B2701: Exterior Lighting Malfunction

Medium
B2703 Sequential Code

B2703: Audio System Fault

Medium
B2704 Sequential Code

B2704: Airbag System Fault

High

💡 Why These Codes Are Related:

  • • Similar Issues: Same root cause or component failure
  • • Related Problems: Often occur together due to system interactions
  • • Sequential Codes: Progressive failure stages or multiple sensors
  • • Same System: Components within the same automotive system